On-board controller for motor vehicle

The present disclosure proposes an on-board controller for a motor vehicle. The on-board controller comprises a data memory, an operation memory and a processor; the data memory comprises a code flashing area and a data flashing area; the code flashing area is configured to store program data related to a control function of the vehicle-mounted controller and calibration data in configuration datarelated to the control function; the data flashing area is configured to store other configuration data different from the calibration data in the configuration data related to the control function,and the processor is configured to map the program data in the data memory, the calibration data, and the other configuration data to the execution memory, and execute a program in the program data toimplement the control function. The on-board controller can prevent configuration data such as calibration data from being mistakenly, lost or erased due to a program BUG and the like, so that the safety of the configuration d